how i grep for certain log lines

StackOverflow https://stackoverflow.com/questions/14941246

  •  10-03-2022
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Question

I have the following logs (removed unnecessary info) :

Feb 18 11:38:54 Kingston dhcpd: DHCPACK
Feb 18 11:39:01 duxbury /USR/SBIN/CRON[27892]:
Feb 18 17:39:01 ruby /USR/SBIN/CRON[13080]:

How Can I grep for a server name (kingston, ruby or duxbury) while ensuring that date/time info is next to the server name? so for instance I could grep for kingston, and it would return "Feb 18 11:38:54 Kingston dhcpd: DHCPACK" but if only "some data Kingston" (no date/time info) was available, then nothing would be returned. Thanks for the help!

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Solution 

grep -E "^[a-zA-Z]+ [0-9]+ [0-9]+:[0-9]+:[0-9]+ Kingston"
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